package com.banfan.almond.web.security;

import com.banfan.almond.utils.ResultUtil;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

@Component
public class LoginFailureHandler implements AuthenticationFailureHandler {

    @Override
    public void onAuthenticationFailure(HttpServletRequest httpServletRequest,
                                        HttpServletResponse httpServletResponse,
                                        AuthenticationException e) throws IOException, ServletException {

        httpServletResponse.setContentType("application/json;charset=UTF-8");
        ServletOutputStream outputStream = httpServletResponse.getOutputStream();

        String result = ResultUtil.errorWithMessage("登陆失败");

        outputStream.write(result.getBytes(StandardCharsets.UTF_8));

        outputStream.flush();

        outputStream.close();


    }
}
